Africa & Asia (ex China)

China

North America

South America

Europe

Oceania

World

Notes

Definitions

Energy intensity of metallurgical alumina production is energy consumed within the plant perimeter by bauxite refining processes (including calcination) and by those auxiliary operations on site which are directly connected with the total production process per tonne of alumina produced. It comprises the energy used by plants which produce an average of 90% or more of their total output as metallurgical grade alumina, and the energy associated with the production of metallurgical alumina at other plants where it is possible to allocate energy consumption. Plants producing metallurgical alumina from nepheline ores or other non-bauxitic sources (e.g.fly ash), which globally contribute less than 1% of production, are excluded due to processual and by-product differences and thus incomparability of energy intensities.

Data Use

The data presented here is not suitable
for life cycle assessment (LCA) purposes, rather data from the IAI life
cycle inventory (LCI) reports or from alternative sources, such as
regional aluminium assocaitions or life cycle data providers should be
used.

Source of Data

The data included in
this IAI Statistical Report have been derived from voluntary reports of
IAI Member and non-Member companies. Sources outside the industry or
estimates are used for "World" and "China" regions only.

Data Aggregation

The
IAI Statistical System is designed to meet the requirement that, in
general, individual company data be included only within appropriately
aggregated totals by declared geographical areas and not be reported
separately. The declared geographical areas and the primary aluminium
producing countries which fall in those areas are as follows:

An
asterisk indicates that smelter energy intensity data were not
reported to the IAI by the company or companies producing
primary aluminium solely within that country; these constitute the
estimated part of the "World" average, where data is available. Dates
given against a
country indicate that data were reported or not reported, as
appropriate, for the limited period shown.

Data Integrity

The IAI considers the figures shown to be reliable, but they may be subject to revision.